Calhoun's study of overcrowding showed that animals in overcrowded conditions
a. reproduce more rapidly.
b. become more cooperative.
c. increase their maternal behavior.
d. die from stress-caused diseases.
d
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A condition that results when the FMR1 gene of the X chromosome narrows, breaks, or otherwise becomes mutated is
a. PKU. b. Down syndrome. c. sickle-cell disease. d. fragile X syndrome.
Leeann is studying for a test on neurotransmission. She wrote in her notes that neurotransmitters are released from the presynaptic neuron when the action potential reaches the terminal and opens ______ channels.
A. sodium B. potassium C. chloride D. calcium
The transparent bulge at the front of the eye is known as the
a. lens. b. sclera. c. cornea. d. iris. e. pupil.
If you are interested in how different study strategies affect academic success in college, what is your population?
a. All study strategies b. The study strategies tested in the experiment c. All college students d. The college students tested in the experiment